<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <form action="http://127.0.0.1:4000/reg" method="post">
        <label for="">用户名:</label>
        <input type="text" name="username" id="">
        <br>
        <label for="">密码:</label>
        <input type="text" name="password" id="">
        <br>
        <input type="submit" name="" value="注 册" id="">
    </form>
</body>

</html>